3161461256556 has 12 divisors (see below), whose sum is σ = 7376742931992. Its totient is φ = 1053820418848.

The previous prime is 3161461256533. The next prime is 3161461256561. The reversal of 3161461256556 is 6556521641613.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×3161461256556³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 3161461256499 and 3161461256508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131727552345 + ... + 131727552368.

It is an arithmetic number, because the mean of its divisors is an integer number (614728577666).

Almost surely, 2^{3161461256556} is an apocalyptic number.

It is an amenable number.

3161461256556 is an abundant number, since it is smaller than the sum of its proper divisors (4215281675436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3161461256556 is a wasteful number, since it uses less digits than its factorization.

3161461256556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263455104720 (or 263455104718 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 51.

The spelling of 3161461256556 in words is "three trillion, one hundred sixty-one billion, four hundred sixty-one million, two hundred fifty-six thousand, five hundred fifty-six".